/* ==========================================================================
   DeepStrata Logic — shared stylesheet (light theme)
   Brand: #005AB6 (blue) · #09BDED (sky) · #20CEFE (cyan) · #FFFFFF
   Type:  Inter (Bold headings, Regular body)
   ========================================================================== */

:root {
  /* Brand */
  --blue: #005AB6;
  --sky: #09BDED;
  --cyan: #20CEFE;
  --white: #ffffff;

  /* Surfaces */
  --bg: #f4f8fc;
  --surface: #ffffff;
  --surface-2: #eef3f9;
  --border: rgba(16, 45, 82, 0.12);
  --border-strong: rgba(16, 45, 82, 0.22);

  /* Text */
  --heading: #0e2038;
  --text: #35485e;
  --text-muted: #556884;
  --text-dim: #7889a0;
  --accent: #0a6fb8;              /* readable brand blue for links/icons on light */

  /* Gradients */
  --grad: linear-gradient(120deg, #005AB6 0%, #09BDED 55%, #20CEFE 100%);
  --grad-text: linear-gradient(120deg, #0050a6 0%, #0a80bd 55%, #0a9ccb 100%);
  --grad-soft: linear-gradient(120deg, rgba(0,90,182,0.10), rgba(32,206,254,0.12));

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 22px 48px -30px rgba(12, 38, 74, 0.35);
  --shadow-glow: 0 18px 44px -22px rgba(9, 137, 200, 0.4);

  --maxw: 1160px;
  --space: clamp(4rem, 8vw, 7rem);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient background tints */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(55% 45% at 12% 0%, rgba(0, 90, 182, 0.10), transparent 60%),
    radial-gradient(45% 40% at 92% 4%, rgba(32, 206, 254, 0.12), transparent 55%),
    var(--bg);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(16, 45, 82, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16, 45, 82, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 18%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 18%, #000 0%, transparent 78%);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.02em; color: var(--heading); overflow-wrap: break-word; }
h1 { font-size: clamp(2.2rem, 5.2vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: var(--space) 0; }
.text-grad {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.center { text-align: center; }
.muted { color: var(--text-muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent);
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(0, 90, 182, 0.06);
  margin-bottom: 1.2rem;
}
.lead { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--text-muted); max-width: 62ch; }
.section-head { max-width: 60ch; margin: 0 auto 3rem; }
.section-head.center { text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: 0.98rem;
  padding: 0.85rem 1.5rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad); color: #ffffff; box-shadow: var(--shadow-glow); }
.btn-primary:hover { box-shadow: 0 24px 60px -20px rgba(9,137,200,.55); }
.btn-ghost { background: #ffffff; color: var(--heading); border-color: var(--border-strong); }
.btn-ghost:hover { background: #f3f8fd; border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 1rem 1.8rem; font-size: 1.05rem; }
.btn-arrow::after { content: "\2192"; transition: transform .18s ease; }
.btn:hover .btn-arrow::after, .btn-arrow:hover::after { transform: translateX(3px); }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 0.7rem; font-weight: 700; color: var(--heading); }
.brand img { height: 34px; width: auto; }
.brand-word { font-size: 1.12rem; letter-spacing: 0.01em; }
.brand-word .thin { font-weight: 400; color: var(--text-muted); }
.nav-links { display: flex; align-items: center; gap: 0.35rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  padding: 0.5rem 0.9rem; border-radius: 999px;
  font-size: 0.95rem; color: var(--text-muted);
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--heading); background: rgba(16,45,82,0.05); }
.nav-links a.active { color: var(--heading); }
.nav-cta { display: flex; align-items: center; gap: 0.6rem; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border-strong);
  border-radius: 10px; width: 42px; height: 42px; cursor: pointer;
  color: var(--heading); align-items: center; justify-content: center;
}
.nav-toggle svg { width: 22px; height: 22px; }

/* ---------- Hero ---------- */
.hero { padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 3rem; align-items: center; }
.hero-grid > * { min-width: 0; }
.hero-visual { overflow: hidden; }
.codeline { overflow-wrap: anywhere; }
.hero h1 { margin-bottom: 1.1rem; }
.hero .lead { margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 2.4rem; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 2rem; }
.hero-stats .num { font-size: 1.7rem; font-weight: 700; color: var(--heading); }
.hero-stats .lbl { font-size: 0.85rem; color: var(--text-dim); }

/* Hero visual (floating panel) */
.hero-visual {
  position: relative; border-radius: 22px; padding: 1.6rem;
  background: linear-gradient(160deg, #ffffff, #eef5fc);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.hero-visual .glow {
  position: absolute; inset: -1px; border-radius: 22px; padding: 1px;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.55; pointer-events: none;
}
.codeline { display: flex; gap: 0.5rem; align-items: center; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.82rem; color: var(--text-muted); padding: 0.35rem 0; }
.codeline .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none; }
.hero-visual .bar { height: 8px; border-radius: 999px; background: rgba(16,45,82,0.08); margin: 0.55rem 0; overflow: hidden; }
.hero-visual .bar i { display: block; height: 100%; background: var(--grad); border-radius: 999px; }
.hero-visual .chip { display:inline-block; font-size:.72rem; padding:.25rem .6rem; border-radius:999px; border:1px solid var(--border-strong); color:var(--accent); margin:.2rem .3rem 0 0;}

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.7rem;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--text-muted); margin: 0; font-size: 0.96rem; }
.card .icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 1.1rem;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border-strong);
  color: var(--accent);
}
.card .icon svg { width: 24px; height: 24px; }
.card-link { color: var(--accent); font-weight: 600; font-size: 0.9rem; display: inline-flex; gap: .35rem; margin-top: 1rem; }

/* Feature list with numbers */
.steps { counter-reset: step; }
.step { display: flex; gap: 1.1rem; padding: 1.3rem 0; border-top: 1px solid var(--border); }
.step:first-child { border-top: 0; }
.step .n {
  counter-increment: step; flex: none;
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
  font-weight: 700; color: #ffffff; background: var(--grad);
}
.step .n::before { content: counter(step, decimal-leading-zero); }
.step h3 { margin-bottom: .25rem; }
.step p { color: var(--text-muted); margin: 0; }

/* Stat band */
.stats-band { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; text-align: center; }
.stats-band .num { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; }
.stats-band .lbl { color: var(--text-muted); font-size: 0.9rem; }

/* CTA band */
.cta-band {
  position: relative; overflow: hidden;
  border-radius: 24px; padding: clamp(2.5rem, 5vw, 4rem);
  background: linear-gradient(140deg, rgba(0,90,182,0.12), rgba(32,206,254,0.14));
  border: 1px solid var(--border-strong); text-align: center;
}
.cta-band h2 { max-width: 20ch; margin: 0 auto 0.8rem; }
.cta-band p { color: var(--text-muted); max-width: 52ch; margin: 0 auto 1.8rem; }

/* Pills / tags */
.pill-row { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; }
.pill { border: 1px solid var(--border-strong); border-radius: 999px; padding: .5rem 1rem; font-size: .85rem; color: var(--text-muted); background: #ffffff; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding: clamp(3.5rem, 7vw, 5.5rem) 0 clamp(2rem, 4vw, 3rem); text-align: center; }
.page-hero .lead { margin: 0 auto; }

/* ---------- Blog cards ---------- */
.post { display: flex; flex-direction: column; }
.post .thumb { height: 160px; border-radius: 12px; margin-bottom: 1.1rem; background: var(--grad-soft); border: 1px solid var(--border); position: relative; overflow: hidden; }
.post .thumb::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 30% 30%, rgba(32,206,254,.35), transparent 60%); }
.post .meta { font-size: .8rem; color: var(--text-dim); display: flex; gap: .6rem; margin-bottom: .5rem; }
.post .tag { color: var(--accent); }
.post h3 { font-size: 1.1rem; }

/* ---------- Careers ---------- */
.role {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.3rem 1.5rem; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); transition: border-color .2s, transform .2s, box-shadow .2s;
}
.role:hover { border-color: var(--border-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.role .role-meta { display: flex; gap: .8rem; flex-wrap: wrap; color: var(--text-dim); font-size: .85rem; margin-top: .3rem; }
.role .role-meta span { display: inline-flex; align-items: center; gap: .3rem; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 1.1rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label { font-size: .85rem; color: var(--text-muted); font-weight: 500; }
.field input, .field textarea, .field select {
  width: 100%; padding: .85rem 1rem; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--heading); font: inherit; transition: border-color .15s, box-shadow .15s;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-dim); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(10,111,184,.15); background: #fff;
}
.field textarea { resize: vertical; min-height: 130px; }
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3rem; align-items: start; }
.contact-info .item { display: flex; gap: .9rem; padding: 1rem 0; border-top: 1px solid var(--border); }
.contact-info .item:first-child { border-top: 0; }
.contact-info .item .ic { color: var(--accent); flex: none; }
.contact-info strong { color: var(--heading); }
.contact-info a { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 2rem; background: #eef4fa; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; padding: 3.5rem 0 2rem; }
.site-footer h4 { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 1rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: .6rem; }
.site-footer a { color: var(--text-muted); font-size: .95rem; }
.site-footer a:hover { color: var(--heading); }
.footer-brand p { color: var(--text-muted); font-size: .95rem; max-width: 34ch; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; padding: 1.3rem 0 2rem; border-top: 1px solid var(--border); color: var(--text-dim); font-size: .85rem; }
.social { display: flex; gap: .6rem; }
.social a { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border); display: grid; place-items: center; color: var(--text-muted); background: #fff; }
.social a:hover { color: var(--accent); border-color: var(--accent); }
.social svg { width: 18px; height: 18px; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-band { grid-template-columns: repeat(2, 1fr); gap: 2rem 1rem; }
}
@media (min-width: 761px) {
  .nav-links-cta { display: none; }
}
@media (max-width: 760px) {
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-header.open .nav-links {
    display: flex; position: absolute; left: 0; right: 0; top: 72px;
    flex-direction: column; align-items: stretch; gap: .2rem;
    background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(14px);
    padding: 1rem 1.5rem 1.5rem; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .site-header.open .nav-links a { padding: .8rem 1rem; border-radius: 10px; }
  .nav-links-cta { margin-top: .5rem; }
  .nav-links-cta a { justify-content: center; }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .role { flex-direction: column; align-items: flex-start; }
  .hero-stats { gap: 1.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}